Lattice-Boltzmann method for simulation of flow characteristic in constant area isolator of scramjet

FENG Yong-chang; LI Hui-xiong; HE Hong

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Lattice-Boltzmann method for simulation of flow characteristic in constant area isolator of scramjet

更新时间：2026-07-07

- Lattice-Boltzmann method for simulation of flow characteristic in constant area isolator of scramjet
- Vol. 28, Issue 3, (2013)
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院动力工程多相流国家重点实验室,西安,710049
  2. 中国航天科技集团公司第六研究院第165所,西安,710100
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
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FENG Yong-chang, LI Hui-xiong, HE Hong. Lattice-Boltzmann method for simulation of flow characteristic in constant area isolator of scramjet[J]. 2013, 28(3).
DOI：

FENG Yong-chang, LI Hui-xiong, HE Hong. Lattice-Boltzmann method for simulation of flow characteristic in constant area isolator of scramjet[J]. 2013, 28(3). DOI：

摘要

为了探寻研究超燃冲压发动机隔离段内复杂流动的新方法

采用耦合的双分布函数格子-Boltzmann方法(LBM)对不同条件下隔离段内的流动进行了研究

分析了出口反压、进口马赫数、进口附面层厚度对隔离段流动特性的影响.结果表明:随着出口反压、进口附面层厚度的增加

以及进口马赫数的减小

可使激波串起始位置前移.结果说明耦合的双分布函数LBM有望成为研究超燃冲压发动机内复杂流场的一种有效的数值模拟手段.

Abstract

In order to seek a new method to study the complex flow field of isolator

the influence of flow parameters upon the internal flow field of isolator under different conditions was studied by numerical simulation with coupled double distribution function lattice-Boltzmann method(LBM)

and the parameters included the back pressure

entrance Mach number

and boundary layer thickness.The results show that with the increase of the back pressure and boundary layer thickness or with the decrease of entrance Mach number

shock train would move upwards along the isolator.From this study

it can be concluded that the coupled double distribution function LBM is an efficient approach for simulating the complex flow field of scramjet.

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Related Institution

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室

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School of Aerospace Engineering, Beijing Institute of Technology

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